Tuesday, December 19, 2017

Is this the beginning of the end of BitCoin, Etherum and LiteCoin ? Did it really crashed today evening ??

The BitCoin was traded at $14,212 at 6:40 PM CST, December 19 2017. The price is almost 27% less than its highest value. At the time of the post of this blog, the BitCoin is now backed up to $17,149 

The Etherum was traded at $705 at 6:40 PM CST, December 19 2017. The price is almost 17% less than its highest value. At the time of the post of this blog, the Etherum is now backed up to $772 The

LiteCoin was traded at $277 at 6:40 PM CST, December 19 2017. The price is almost 37% less than its highest value of $371. At the time of the post of this blog, the LiteCoin is now backed up to $320 

Where as the Bitcoin Cash is enjoying a ride of $3100 per bitcoin cash which is almost 41% higher than its yesterday's price.


Wednesday, August 30, 2017

Fix for xcrun: error: invalid active developer path after updating your mac OS to Sierra

If you are geting the following error with Git or any other tools while running it on from your terminal
 xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun. 

 using the following command to fix it
xcode-select --install


Friday, March 3, 2017

Git Cheat Sheet

A. To List your local branchs :
  •   git branch

B. How to get or fetch a remote  Branch 
   You first need to fetch and check out the remote branc
  •    git fetch remote remote_branch_name (eg :  git fetch origin story2525/mytest_remote_branch)
  • git checkout remote_branch_name

C. How to delete a  Branch both locally and remotely:  

1. Delete the  remote branch   
  •   git push origin :branch_name or
  •   git push origin --delete branch_name

2. Delete a local branch
  •   git branch -d branch_name   (use -D if your branch hasn't been fully merge yet)         

D. How to rename your remote Branch : 

1. Rename branch locally
  • git branch -m old_branch new_branch

2. Delete the old remote branch   
  •   git push origin :old_branch            

3.  Push the new Branch  and update the upstream to point it to the new remote branch.
  •  git push --set-upstream origin new_branch
E. Git Logs :

git log --oneline | grep searchString
git log --pretty=format:"%cn committed %h on %cd"| grep searchString

F. Force Push :
 git push origin refactor/mybranch —force

G: Change the remote
git remote set-url origin <>

H. Ammend message for a committed and pushed changes
 git commit --amend 
To push the changes to the branch (myBranch) on the remote repository (origin) use: 
git push --force-with-lease origin myBranch

H. Reset your branch to origin version, revert all your local commit and changes.
Plese stash your changes before you do it. git stash

git reset --hard origin/yourbranch

 I. undo the last commit and unstage all the files:

git reset HEAD~;

j. Undo the commit and completely remove all changes(Becareful !)

git reset --hard HEAD~;

K> Undo previous merge:
check the previous log :
git log
Then revert back the merge  corresponding to the commit hash
 git revert -m 1
And finally push your changes:
git push


Sunday, December 18, 2016

How to check if the given string is palindrome (Recursive vs Non-recursive )

palindrome is a word, phrase, number, or other sequence of characters which reads the same backward or forward, such as "level" or "kayak" or  "amanaplanacanalpanama" 

Following is the program to check if the given string is a palindrome.  

package com.mytech.today;

public class PalindromeClient {

    public static boolean isPalendrome (String s) {

        if(s== null) {
            throw new RuntimeException("null value passed");

        int n = s.length();
        if(n==1) return true;
        else {

            for (int i=0; i < n/2 ; i++) {
                if(s.charAt(i)!=s.charAt(n-i-1)) {
                    return false;
        return true;

    public static boolean isPalendromeRecurrsive (String s) {

        if (s.length()<2) { return true;}
        else if (s.charAt(0)==s.charAt(s.length()-1)) {
            return isPalendrome(s.substring(1, s.length()-1));
        else return false;


    public static void main(String[] args) {
        System.out.println(isPalendrome("jptt aefa afdaf"));

        System.out.println(isPalendromeRecurrsive("jptt aefa afdaf"));


Wednesday, June 19, 2013

Replace Line Break and Spaces on Text Area using java script !

A simple way to replace line break and spaces on a text area content can be done simply by replacing the line break value and the space value with the corresponding html tag as following .

function replaceLineBreaksAndSpaces(textValue) {
   textValue = replaceSpaceCharacter(replaceLineBreak(textValue));
   return textValue;
function replaceLineBreak(textValue) {

    textValue = textValue.replace(/\r?\n/g, ' 
<br />');
    return textValue;


function replaceSpaceCharacter(textValue) {

    textValue = textValue.replace(/  /g, ' &nbsp;');
    return textValue;


Friday, November 16, 2012

Java Script function to Convert your local Date to UTC format Date

There might be a case that you might need to save date on UTC format while the user input date might be regional date time format. The following function converts the date on the UI layers itself  from the input reginonal date to UTC Date.

function convertToUTCFormat(date){
var year = "" + date.getUTCFullYear();
var month = "" + (date.getUTCMonth() + 1);if (month.length == 1) { month = "0" + month; } //months range is [0-11]
var day = "" + date.getUTCDate(); if (day.length == 1) { day = "0" + day; }
var hour = "" + date.getUTCHours();if (hour.length == 1) { hour = "0" + hour; }
var minute = "" + date.getUTCMinutes(); if (minute.length == 1)  minute = "0" + minute; } var second = "" + date.getUTCSeconds(); if (second.length == 1) { second = "0" + second; }

return year + "-" + month + "-" + day + " " + hour + ":" + minute + ":" + second+":000"; }


Tuesday, October 2, 2012

java.lang.IllegalStateException: Imbalanced frame stack! (exit() called too many times) !

If you started using SpringSource Insight,It's highly recommended to increase the memory of the tc Runtime Instance to more than what your application requires on its own . The following is the exception you might see in case there is not enough memory.
type Exception report

descriptionThe server encountered an internal error () that prevented it from fulfilling this request.
java.lang.IllegalStateException: Imbalanced frame stack! (exit() called too many times)

note The full stack trace of the root cause is available in the VMware vFabric tc Runtime 2.6.2.RELEASE/7.0.22.A.RELEASE logs.

There are few options to resolve this issue.
  1. Increase the max heap
    For example: -Xmx512m
  2. or max PermGen size JVM option.
    For example: -XX:MaxPermSize=256m
  3. Increase the Spring insight max frame
    For example: -Dinsight-max-frames=6000
OR you can have all of the above JVM parameters.



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